string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%8A%A5%E8%80%83%E6%9D%A1%E4%BB%B6%E9%9C%80%E8%A6%81%E5%85%88%E8%80%83%E4%B8%80%E5%BB%BA%E5%90%97 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
二建工程师报考条件需要先考一建吗
